Chen Qian, a modern history teacher, unexpectedly returned to Jian'an for five years and possessed an ordinary military officer in Xinye Town. When he stood on Bowang Slope where the cold wind was howling, facing the approaching Cao Jun, he was shocked to realize that he had no system of gold and iron in his hands, but only fragments of historical materials that had been worn into pieces by the years. He improved Xinye farming with farming techniques, persuaded Zhou Yu to deploy defenses based on the Chibi River defense plan, planned the benefits of salt and iron with Fa Zheng in the battle to enter Shu, and tried his best to save the Shu Han from exhaustion after the defeat at Yiling. He witnessed Guan Yu's pride and fall, participated in Zhuge Liang's new policy of governing Shu, and pieced together the dream of the Northern Expedition amidst the creaking of wooden cows and flowing horses. There is no golden finger to predict the future, only the sparks created by the collision of modern management knowledge with the ancient bureaucracy. When the Beidou in Wuzhangyuan was extinguished, he finally understood that he was not a hero rewriting history, but a grain of sand trying to stir up ripples in the long river of history - but inadvertently, every piece of land in Shu Han left traces of cultivation that did not belong to this era. This is the survival ambition of an ordinary person in the troubled times of the Three Kingdoms, and it is also a record of the rise and fall of the Shu Han without miracles.
